The invention discloses a high-performance air purifier which is mainly composed of a purifier box (1), an air inlet (2), an air outlet (3), an air inlet horn mouth (4), a dust collection electrode frame (6), a corona electrode (7), a dust guide plate (8), a high voltage power supply (9) and a dust hopper (10). The dust is limited inside a dust collection plate under the action of corona wind, so that the turbulence intensity in a flue gas channel is reduced, and the dust collection effect is improved; meanwhile, the dust particle size is smaller under the action of corona wind, the dust collection performance is higher; the air purifier disclosed by the invention is not restricted by specific resistance of dust; the dust entering a dust collection chamber has an excellent fluid mechanics shielding effect, so that backflow loss can be effectively reduced; and compared with the conventional electric field, the dust collection electric field with the configuration has higher dust suppression efficiency, the loss of raising dust is small, and the high-performance air purifier is wide in application range and light in structure weight and has high cost performance and wide application prospects.